The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 2022
Filed:
Apr. 22, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Yuichi Iwasaki, Utsunomiya, JP;
Yoshimasa Araki, Yokohama, JP;
Noriyasu Hasegawa, Utsunomiya, JP;
Hideki Matsumoto, Utsunomiya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ejection material filling device fills an ejection material into a first storage space of an ejection material ejecting device including an ejection head configured to eject the ejection material and a storage container having an internal space separated by flexible membrane into the first storage space storing the ejection material and a second storage space storing a hydraulic fluid. The ejection material filling device includes an ejection material server bottle storing the ejection material to be filled into the first storage space, pipes configured to form a circulation path including the ejection material server bottle and the first storage space, a pump configured to circulate the ejection material through the circulation path, and a particle filter provided in the circulation path.